31989420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4133}}^1$

素因数の和:4191

約数の個数: 72

約数和(自身を含む): 99315216

約数和(自身を除く): 67325796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 4133, 7740, 8266, 12399, 16532, 20665, 24798, 37197, 41330, 49596, 61995, 74394, 82660, 123990, 148788, 177719, 185985, 247980, 355438, 371970, 533157, 710876, 743940, 888595, 1066314, 1599471, 1777190, 2132628, 2665785, 3198942, 3554380, 5331570, 6397884, 7997355, 10663140, 15994710, 31989420]

約数ペア:

[(1, 31989420), (2, 15994710), (3, 10663140), (4, 7997355), (5, 6397884), (6, 5331570), (9, 3554380), (10, 3198942), (12, 2665785), (15, 2132628), (18, 1777190), (20, 1599471), (30, 1066314), (36, 888595), (43, 743940), (45, 710876), (60, 533157), (86, 371970), (90, 355438), (129, 247980), (172, 185985), (180, 177719), (215, 148788), (258, 123990), (387, 82660), (430, 74394), (516, 61995), (645, 49596), (774, 41330), (860, 37197), (1290, 24798), (1548, 20665), (1935, 16532), (2580, 12399), (3870, 8266), (4133, 7740)]